What is Business Network JS Scripting Language?

Business Network JS Scripting Language is the standard JavaScript language to define business logics on how each transaction is processed.

JavaScript source code can be stored in a single or multiple files with the *.js file extension.

Each JavaScript source code file should contrain set of function statement blocks.

/* function to process a specific type of transactions 
 * defined in a business network model file.
 * @transaction
 */
function ... {
    ... JavaScript statements ...
}
...

/* function to perform a specfic task to support other functions.
 */
function ... {
    ... JavaScript statements ...
}

Here is an example of a JavaScript file, lib/hello.js:

/* Copyright (c) FYIcenter.com
 */

/* @transaction
 * @param {com.fyicenter.hyperledger.hello.Hello} req
 */
function helloProcessor(req) {
  console.log("Hello "+req.name+"!");
}

 

⇒ "transaction" Process Function Syntax

⇐ Business Network JS Scripting Language

⇑ Business Network JS Scripting Language

⇑⇑ Hyperledger Composer Tutorials